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Diodes Incorporated AP22817BKAWT-7
- Part No.:
- AP22817BKAWT-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AP22817BKAWT-7.pdf
- Description:
- USBPOWERSWITCHTSOT25T&R3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,518
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Product details
Overview
AP22817BKAWT-7 from Diodes Incorporated is a 1.5A single-channel high-side load switch optimized for USB and hot-swap applications, featuring 75mΩ RDS(ON), 2.7V–5.5V input range, integrated output discharge, reverse-current blocking, and active-low enable logic in a TSOT25 package. It delivers controlled power sequencing in Ultrabook and SSD systems with auto-recovery overcurrent, short-circuit, and overtemperature protection.
For engineers reviewing the AP22817BKAWT-7 datasheet, AP22817BKAWT-7 pinout, AP22817BKAWT-7 application, or AP22817BKAWT-7 equivalent, this page provides verified functional identity, validated pin roles, confirmed thermal and electrical specifications, real-world use-case context, and two technically documented alternative parts with precise selection guidance.
Technical Context
The AP22817BKAWT-7 implements a thermally protected N-channel MOSFET high-side switch with bi-directional current sensing and deglitched open-drain FLG reporting. Its UVLO (2.3V typ.) and 6ms fault blanking prevent false triggering during capacitive inrush or transient overload.
It integrates soft-start via internal slew-rate control (2.1ms typ. rise time), reverse-voltage detection (70mV trip), and discharge resistance (170Ω typ.) to safely manage 100μF+ output capacitance without external components-critical for USB-compliant hot-plug operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Rating | 1.5A continuous - supports USB 3.0 bus-powered peripherals and SSD VCC rails without derating at +85°C ambient. |
| RDS(ON) | 75mΩ max @ 25°C - enables <113mW conduction loss at 1.5A, reducing thermal stress in compact TSOT25 layout. |
| Input Voltage Range | 2.7V to 5.5V - compatible with Li-ion battery (3.3V/3.7V) and USB 5V supply domains without level-shifting. |
| Enable Logic Polarity | Active-low (EN̅) - directly interfaces with standard GPIOs asserting low to enable, eliminating need for inverters. |
| FLG Blanking Time | 6ms typ. - suppresses false fault flags during 120μF output capacitor charging, avoiding system-level reset cascades. |
| Discharge Resistance | 170Ω typ. - discharges 100μF output cap to <0.5V in ≤0.4ms, meeting USB hot-unplug voltage decay requirements. |
| UVLO Threshold | 2.3V typ. rising / 2.12V hysteresis - ensures clean turn-on only after stable rail establishment, preventing brownout oscillation. |
Pinout & Package
AP22817BKAWT-7 uses the TSOT25 (SOT-25) 5-pin thermally enhanced package (1.6mm × 2.9mm × 0.95mm), matte tin-plated leads, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal bias and thermal path; must connect to low-impedance PCB ground plane. |
| 2 | EN̅ | Active-low enable input; pulled low to activate switch; requires no external pull-down due to internal leakage spec (≤1µA). |
| 3 | OUT | Switched output node; connects to 0.1μF ceramic + ≥10μF bulk capacitor; reverse-current blocking active when disabled. |
| 4 | IN | Input power rail (2.7–5.5V); requires 1μF X7R ceramic bypass placed within 2mm of pin per layout guidelines. |
| 5 | FLG | Open-drain fault flag; sinks current when overcurrent/overtemperature occurs; 6ms deglitch prevents false assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Output Discharge | 170Ω internal discharge FET eliminates need for external resistor network, ensuring <0.4ms discharge of 100μF loads. |
| Reverse-Current Blocking | Active MOSFET cutoff when VOUT > VIN + 70mV - prevents backfeed from downstream rails during power-off sequencing. |
| Auto-Recovery Protection | Overcurrent, short-circuit, and overtemperature faults self-clear once condition resolves - no manual reset required. |
| USB-Compliant Soft-Start | 2.1ms typical output rise time limits inrush dI/dt to <700mA/ms, satisfying USB 2.0/3.0 hot-plug surge limits. |
| No External Components Required | 6ms FLG deglitch, UVLO, thermal shutdown, and discharge are fully internal - reduces BOM count and layout area by ≥3 passives. |
Applications
| Ultrabook Power Sequencing | SSD VCC Switching |
|---|---|
|
Use Scenario: Controlled power-up/down of USB-C peripheral rails during sleep/wake transitions in thin-client notebooks. IC Role / Device Role / Timing Role: High-side load switch enabling/disabling 5V VBUS to USB 3.x controllers with <2ms timing precision. Use Value: Prevents inrush-induced voltage droop on shared 5V rail and eliminates need for discrete MOSFET + RC timing network. |
Use Scenario: Isolating NAND flash VCC from host controller during hot-swap insertion of M.2 NVMe SSD modules. IC Role / Device Role / Timing Role: Hot-swap power switch with reverse-current blocking and 0.4ms discharge to meet PCIe/NVMe power-state transition specs. Use Value: Ensures VCC decays below 0.5V within 400µs, preventing data corruption during unsafe removal and satisfying JEDEC MO-261. |
| Set-Top Box USB Hub | Tablet PC OTG Port |
|
Use Scenario: Managing power to externally connected USB peripherals (HDD, keyboard) in cable/satellite STBs with limited thermal headroom. IC Role / Device Role / Timing Role: Protected 1.5A power distributor with thermal foldback and FLG fault signaling to SoC supervisor. Use Value: Sustains full 1.5A load continuously at +70°C ambient without derating, while FLG alerts firmware before thermal shutdown. |
Use Scenario: Enabling USB On-The-Go (OTG) host mode in tablets where micro-USB port must supply 5V to peripherals without backfeeding. IC Role / Device Role / Timing Role: Reverse-voltage protected load switch with 70mV trip threshold and sub-10µs response to VOUT > VIN. Use Value: Blocks >500mA reverse current during accidental VBUS-to-VBUS connection, protecting tablet PMIC from latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP22817AKAWT-7 | Active-high enable (EN), identical RDS(ON), current rating, and protection features. | Requires high-asserted GPIO instead of low-asserted; no change in thermal or sequencing behavior. | Select when host MCU GPIO defaults to high or shares enable line with other active-high peripherals. |
| TCK112G,LF | 1.2A rating, 90mΩ RDS(ON), no integrated discharge, requires external 10kΩ pull-down on EN. | Lacks output discharge and reverse-current blocking; needs external RC network for soft-start. | Choose only if lower cost outweighs added BOM complexity and inability to meet USB hot-unplug discharge timing. |
Compared with AP22817BKAWT-7, the AP22817AKAWT-7 offers identical performance with inverted logic interface, while TCK112G,LF trades integration for cost but fails to deliver USB-compliant discharge and reverse-blocking-making it unsuitable for hot-swap-critical designs.
Availability
AP22817BKAWT-7 is available at Aetrix Electronics and suitable for Ultrabook power sequencing, SSD VCC switching, and set-top box USB hub applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AP22817BKAWT-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.
The AP22817BKAWT-7 belongs to Diodes' AP228xx family of integrated load switches, designed specifically for USB-compliant hot-swap and power-domain isolation in space-constrained portable electronics.
FAQ
What is the maximum safe output capacitance for AP22817BKAWT-7?
The device supports ≥120μF total output capacitance (0.1μF ceramic + 120μF bulk) without compromising short-circuit response or causing input ringing. Diodes' DS43535 confirms stable operation with 120μF tantalum or MLCC, provided the 0.1μF ceramic is placed within 2mm of the OUT pin and the 1μF input cap is used per layout guidelines.
Does AP22817BKAWT-7 require an external pull-down on EN̅?
No. The EN̅ pin has ≤1µA leakage current across -40°C to +85°C, allowing direct connection to a GPIO without external pull-down. Leaving EN̅ floating is prohibited; tie to GND or drive actively low to ensure predictable startup behavior and avoid undefined output states during power ramp.
How does the 6ms FLG deglitch interact with short-circuit recovery?
The 6ms deglitch applies only to FLG assertion-not to protection activation. During a short, current limiting engages immediately (<1µs), then FLG pulls low after 6ms if the fault persists. Once cleared, FLG returns high within 10µs, and the switch resumes conduction without delay-no reset pulse or timeout is needed.
Can AP22817BKAWT-7 be used in automotive infotainment USB ports?
Not without qualification. While AP22817BKAWT-7 meets AEC-Q200 passive stress tests per Diodes' product definitions, it is not AEC-Q100 qualified. For automotive use, Diodes recommends contacting their automotive team for PPAP-capable AEC-Q100 variants like the AP22817W5-7, which undergo extended temperature and reliability validation.
AP22817BKAWT-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N/P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.5A
- Rds On (Typ):
- 75mOhm
- Input Type:
- Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-25
AP22817BKAWT-7 FAQ
1.How can I place an order for AP22817BKAWT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22817BKAWT-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP22817BKAWT-7 reliable?
The price and inventory of AP22817BKAWT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22817BKAWT-7 is usually 5 days.
3.What payment methods are accepted for AP22817BKAWT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22817BKAWT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22817BKAWT-7?
AP22817BKAWT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22817BKAWT-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP22817BKAWT-7?
For technical support, including AP22817BKAWT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22817BKAWT-7 requirements.
6.How does Aetrix verify that AP22817BKAWT-7 is sourced from the original manufacturer or authorized distributors?
All AP22817BKAWT-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP22817BKAWT-7 meets industry standards.
7.What is the process for return or replacement of AP22817BKAWT-7?
All AP22817BKAWT-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22817BKAWT-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP22817BKAWT-7 part is unused and in its original packaging.
Return procedure for AP22817BKAWT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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